Question

If 1/5 of cakes where fruit and reminder was sponge what's the reminder in %

Answer 1

If 1/5 of the cakes are fruitcakes, then
`1- (1)/(5) = (4)/(5)` of the cakes are sponge cakes. To convert to a percentage, we simply multiply by 100, for a result of
`(4)/(5)*100= (400)/(5)=80` percent sponge cakes.